ProMag S&W Shield 40 S&W 6-Round Blued Steel Magazine

ProMag SMI 29 - a 6-round magazine for the Smith & Wesson Shield in .40 caliber. Constructed from heat-treated blued-steel, components molded from the Promag proprietary TECHNAPOLYMER and their anti-fatigue spring, so you can keep the magazine loaded and ready for up to six years without concern. ProMag magazines are made in Phoenix, Arizona and come with a lifetime warranty.